Microsoft Lumia 640 (microsoft-dempsey)
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This device is marked as not booting.
Status: started some research
Status: started some research
![]() No image yet | |
Manufacturer | Microsoft |
---|---|
Name | Lumia 640 Dual SIM |
Codename | microsoft-dempsey |
Released | 2015 |
Hardware | |
Chipset | Qualcomm MSM8926 Snapdragon 400 (28 nm) |
CPU | Quad-core 1.2 GHz Cortex-A7 |
GPU | Adreno 305 |
Display | IPS LCD capacitive touchscreen, 16M colors 5.0 inches, 68.9 cm2 (~67.6% screen-to-body ratio) 720 x 1280 pixels, 16:9 ratio (~294 ppi density) Corning Gorilla Glass 3 ClearBlack display |
Storage | 8GB |
Memory | 1GB RAM |
Architecture | armv7 |
Software | |
Original software | Microsoft Windows Phone 8.1 |
postmarketOS | |
Category | testing |
Pre-built images | no |
Contributors
Users owning this device
- Brad1111 (Notes: RM-1072)
- Chaosleo07 (Notes: running mainline)
- Dominduchami (Notes: Runs mainline)
- Ermine (Notes: RM-1075, runs mainline)
- FieryFlames
- Kierownik223 (Notes: LTE model)
- Marshift
- Maxnet (Notes: rm-1077, unlocked bootloader)
- Nobodywasishere (Notes: Actually the AT&T LTE model but close enough)
- PEPSIMANTR (Notes: Single SIM LTE variant(RM-1074))
- Rom4nik (Notes: RM-1077)
- Shipa (Notes: 2pcs, fon 1709 ATM)
- Wdxvvy (Notes: running W10M 1709)
Random thoughts
Mainline linux with Bartosz Dudziak's patches and a simple dts actually boots on it now (uart, emmc and sd card works): https://github.com/Dominduchami/linux
Here's a nice guide written by Wolf Link which explains how to do it : How to compile and install edk2 : https://github.com/WolfLink115/Lumia830Pkg#how-to-compile How to boot linux : https://github.com/WolfLink115/Lumia830Pkg#how-to-boot-linux-from-emmc-on-lumia-640
See also
- old prebuilt bootloader, but working
- lk and boot shim used above
- Windows Device Recovery Tool - useful for restoring a device
- Over-the-cable 8.1 to 10 WP Update (FYI This update takes a while)